Great St Lawrence Sea Conditions and Tide Table

Great St Lawrence Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 05:33 AM and sunset is at 09:00 PM.

Days 1–3 Weather Summary

Light rain (total 4mm), mostly falling on Thu night. Cool air temperatures (max 19°C on Thu morning, min 15°C on Fri night). Mainly fresh winds.

Days 4–6 Weather Summary

Mostly dry. Warm air temperatures (max 21°C on Sat afternoon, min 14°C on Sat night). Winds increasing (light winds from the W on Sat morning, fresh winds from the W by Mon morning).

Days 7–9 Weather Summary

Light rain (total 2mm), mostly falling on Thu night. Warm (max 20°C on Wed afternoon, min 15°C on Tue night). Winds decreasing (fresh winds from the W on Tue afternoon, light winds from the W by Wed night).

Days 10–12 Weather Summary

Moderate rain (total 10mm), heaviest on Mon morning. Warm (max 20°C on Sat morning, min 15°C on Fri morning). Winds decreasing (fresh winds from the W on Sat afternoon, calm by Sun night).

Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
6:16PM1.92m
6:07AM1.49m
7:08PM1.98m
7:08AM1.52m
8:04PM2.05m
8:10AM1.58m
8:58PM2.11m
9:07AM1.68m
9:48PM2.16m
9:56AM1.78m
10:34PM2.19m
10:43AM1.88m
11:19PM2.17m
11:31AM1.95m
00:04AM2.11m
12:21PM1.99m
00:51AM2.02m
1:18PM2.01m
1:41AM1.91m
2:20PM2.01m
2:35AM1.79m
3:24PM2.02m
3:32AM1.69m
Low Tide
11:23AM0.76m
00:38AM0.90m
12:23PM0.69m
1:28AM0.81m
1:13PM0.60m
2:13AM0.72m
1:59PM0.52m
2:57AM0.63m
2:43PM0.46m
3:40AM0.55m
3:29PM0.43m
4:24AM0.49m
4:18PM0.45m
5:09AM0.44m
5:10PM0.49m
5:54AM0.42m
6:06PM0.56m
6:39AM0.43m
7:04PM0.65m
7:25AM0.47m
8:05PM0.74m
8:14AM0.54m
9:13PM0.82m
Wave
height (m) 
direction
period (s) 
1.6
SSW
7
1.8
SW
7
1.4
SW
7
1.5
SSW
8
1.3
SSW
8
1.4
SW
8
1.7
SW
8
1.6
SW
8
1.4
SW
8
1.3
SW
8
1.1
SW
9
1.1
SW
9
1.1
SW
8
1.1
SW
8
1.3
SSW
8
1.3
SSW
8
1.2
SSW
8
1.1
SW
7
0.9
SW
7
0.9
SW
5
0.9
SSW
6
0.7
SSE
10
0.9
SSW
5
0.6
SSE
9
0.5
SSE
9
0.6
SSE
9
0.7
SSE
9
0.8
SSE
9
1
SSW
5
0.8
SSW
4
0.8
S
5
1.1
WSW
5
1
SSW
6
1
SSW
6
1.2
SW
6
1.1
SW
7
cloud
part cloud
cloud
part cloud
part cloud
light rain
light rain
cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
light rain
light rain
light rain
part cloud
part cloud
clear
clear
clear
part cloud
rain showers
cloudy
some clouds
cloudy
some clouds
some clouds
light rain
light rain
cloudy
some clouds
clear
clear
clear
clear
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloudy
some clouds
light rain
light rain
light rain
some clouds
some clouds
clear
clear
clear
some clouds
rain shwrs
 km/h
30
SW
25
WSW
15
WSW
15
WSW
20
SW
25
SW
25
SW
25
WSW
10
WSW
10
W
15
WSW
10
WSW
20
SW
20
SW
25
W
35
W
30
W
25
WSW
25
W
30
W
20
WNW
25
WNW
25
W
15
W
10
SW
20
WSW
15
WSW
25
SSW
25
SSW
15
WSW
25
W
35
W
20
W
25
WSW
25
WSW
15
SW
 mm 
3
1.0
2.0
4
1.0
1.0
max°C
17
18
17
19
18
17
16
17
16
20
21
17
17
18
15
17
17
16
18
18
16
19
20
18
18
18
17
15
15
16
20
20
18
20
19
17
Moonrise
6:07
7:16
8:17
9:05
9:42
10:10
10:32
10:51
11:09
11:27
11:47
Moonset
1:26
2:02
2:52
3:56
5:13
6:37
8:02
9:26
10:48
12:09
1:29
2:50
Sunrise
5:33
5:35
5:35
5:37
5:37
5:39
5:41
5:41
5:43
5:43
5:45
5:46
Sunset
9:00
8:59
8:58
8:57
8:55
8:54
8:53
8:52
8:51
8:50
8:49
8:47
Today's sea temperature in Great St Lawrence is 13.2 °C (Statistics for 17 Jul 1981-2005 – mean: 13.0 max: 14.8 min: 11.1°C)
Nearest